Update eslint and fix as-test (#27)

Author: mattjohnsonpint

src/.eslintrc.json

@@ -13,7 +13,7 @@
   "runOptions": {
     "runtime": {
       "name": "node",
-      "run": "node ./tests/<name>.run.js"
+      "run": "node ./build/<name>.run.js"
     }
   }
 }

src/as-test.config.json

@@ -0,0 +1,13 @@
+// @ts-check
+
+import eslint from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    // generated
+    ignores: ["build/**"],
+  },
+);